. Electric railway gazette . n ourarmature (Pigs. and 56). If in looking at thecommutator end of the armature the currentpasses through the coil as it passes over the endof the armature coil in the direction of the arrow(Fig. 55) which would be clockwise in the coil ifwe look at the coil from the north pole of themagnet, and anti-clockwise if viewed from thesouth pole, it will make of the armature core, anelectromagnet, whose south pole is near the northpole and whose north pole is near the south poleof the field magnets. Since unlike poles attracteach other the armature will tend to revol
. Electric railway gazette . n ourarmature (Pigs. and 56). If in looking at thecommutator end of the armature the currentpasses through the coil as it passes over the endof the armature coil in the direction of the arrow(Fig. 55) which would be clockwise in the coil ifwe look at the coil from the north pole of themagnet, and anti-clockwise if viewed from thesouth pole, it will make of the armature core, anelectromagnet, whose south pole is near the northpole and whose north pole is near the south poleof the field magnets. Since unlike poles attracteach other the armature will tend to revolve untilthese unlike poles are as near together as theycan get, or until the axis joining the two poles ofthe armature is in a straight line with or parallelto the axis joining the field magnet poles. Ifnothing more were done the armature wouldsimply oscillate back and forth a few times oneither side of this line and finally come to rest inthe position stated, just as a compass needle doeswhen a magnetic pole is brought near. THE ELEVATED RAILWAY AT GIBRALTAR. have been constantly at work reinforcing thenatural means of defence of this great of the most important innovations in thisdirection is an elevated railway recently construct-ed, which connects the signal station located onthe top of the rook with the south end of thecity. By means of this line materials of all kindscan be sent to the fortress in less than five minutes, which It was formerly necessary to send inwagons by a slow journey up a steep path. On the north end of the Alameda is located theengine house from which two cables of 300 yardsin length lead up the mountain. From there onthe shape of the rock necessitates large and strongtrestle work to support the two cables the requi-site distance and at the proper elevation. Apowerful engine transmits motion to the cableswhich carry the wagons, one ascending while theother descends. Any possible danger whichmight occur from parting of the cables is totall
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Keywords: ., bookcentury1800, bookdecade1890, bookidelectricrail, bookyear1895
